TM-9-2320-283-20-1
TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3
DECEMBER 1983
TM-9-2320-283-20-1 - Page 211 of 926
TM 9-2320-283-20-1
TROUBLESHOOTING.
2-11.
TROUBLESHOOTING PROCEDURES (Continued).
MALFUNCTION
INSTRUCTION
INDICATION
YES
NO
29.
DIFFERENTIAL LOCK LAMP NOT WORKING (Continued).
NOTE
With positive lead on circuit 53E-RD, check ground with negative lead
when doing the following checks.
8.
Check for voltage at
12-volts dc
Replace bulb
Clean and/or
differential lock
nominal.
(para 3-87).
tighten ground
indicator lamp ground
point connec-
point.
tion.
TA 236848
2-86
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